A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5990-01-312-2638
NSN 5835-01-549-2911
NSN 4140-00-064-5360
NSN 6150-01-629-4616
NSN 5996-01-359-9931
NSN 5905-00-206-1943
NSN 2925-01-463-0594
NSN 6130-00-153-9468
NSN 6145-00-956-3455
NSN 6220-01-040-5653
NSN 6620-01-461-3550
NSN 6650-01-141-5999